English
简体中文
Established in 2000, Zhejiang Yongtailong Electronic Co., Ltd. is located in the center of Shanghai, Hangzhou and Suzhou cities. YTL is a professional China DEM3B302 Three Phase High Refresh MID Din Rail Meter Suppliers and DEM3B302 Three Phase High Refresh MID Din Rail Meter Company. With more than 20 years of energy metering experience, we devote ourselves to providing competitive projects and creating value for customers. YTL was one of the first companies in the domestic market with which had an internal R&D department as well as international sales business. Since our foundation in 2000 we have grown to a manufacturer which complies and meet to many specifications from our national and international partners. At present our export volume makes us a leading company for technology and product export to more than 50 countries throughout the world. With provincial high-tech enterprise R&D center, YTL is the Top 100-enterprise with most investment value in Zhejiang. And“Yongtailong”is the famous brand of Zhejiang. For any new products of customers, we will communicate with customers very professionally, listen to their opinions and give useful suggestions to ensure that excellent quality products are made.
DEM3B302 Three Phase High Refresh MID Din Rail Meter Suppliers
DEM3B302 Three Phase High Refresh MID Din Rail Meter
The DEM3B302 is a three-phase direct-type energy meter that employs a high-speed processing chip solution, specifically designed for high-speed metering scenarios such as photovoltaic systems, energy storage systems, and factory energy monitoring. Simultaneously, its wide operating temperature range of -40℃ to 70℃ meets the requirements for application in outdoor charging piles exposed directly to sunlight.
- Voltage input
- Current input
- Communication parameters
- Function parameters
- Structure
- Dimension
-
voltage connection
direct
rated voltage
120~240VLN/208~415VLL
voltage tolerance
from 0.8 to 1.15 Un
frequency
50/60Hz
-
current connection
direct
basic current
（Ib）
5A
minimum current
（Im in）
0.15A
Maximum current
（Imax）
80A
-
communication method
RS485
protocol
RS485 compatible with Modbus RTU, DLT/645-2007
communication type
bidirectional
RS485 connection type
RS485 configuration parameters
Modbus address( from 1 to 247)
Baud rate（9.6/19.2/38.4/57.6/76.8/115.2 kbps）
Parity check (none/odd/even)
Refresh time
≤100ms
-
Measurement function
Monitor energy consumption, key electrical variables (including active and reactive power, power factor), and calculate current/voltage harmonic content and apparent energy
Measurement method
Forward and reverse metering, net bi-directional; first record single-phase then calculate, then separately account for kwh+ and kwh-, absolute value measurement.
Tariff
TOU tariff, 4 tariffs by default, 8 time periods.
Self-diagnosis
EEP Detection
Event alarm
Monitor variable alarms (kW, A, V L-N, V L-L, PF, Kvar, kVA), with adjustable activation thresholds and delays
Firmware upgrade
Local upgrade
Clock
Network automatic time calibration, temperature compensation.
Other functions
WIRING CHECK,Screen saver function, page filter, and runtime hour counter.
-
-
Welcome To A National High-tech Enterprise
-
2000
Established In
-
500+
Employees
-
60+
Export Country
-
500+
Design Right Patent
YTL Honor
-
MID
-
KEMA
-
DLMS
-
IEC
-
KEMA
-
SGS
YTL News
View All News-
How Do Prepaid Electricity Meters Work?
2026-04-21In the field of modern electric energy management, as an innovative metering device, prepaid electricity meters have completely revolutionized the traditional ...
-
Smart Meters: From Precision Metering to Empowering In-depth Services
2026-04-20Amid the era where energy transition converges with digitalization, the value of smart meters extends far beyond automatic meter reading. As a pivotal data nod...
-
Comprehensive Technical Comparison: Single-Phase vs. Three-Phase Energy Meters and the Transition from Analog to Smart Metering Systems
2026-04-191. Introduction to Modern Energy Metering Infrastructure The evolution of electrical infrastructure has transformed the humble energy meter from a simple record...
-
Electricity Meter: The Invisible Scale That Illuminates Life
2026-04-17The Silent Watcher Behind Your Door On the wall behind the door of every home hangs a square or rectangular white box with a glass window, through which a spin...
-
Electricity Meter: The Invisible Ruler Measuring Modern Civilization The Metronome of Life on the Wall
2026-04-16Open the door to any modern home, and you will always find it in some corner—a device, square or round, mechanical or electronic, quietly mounted on the wall...
-
Electricity Meter: The Silent Translator of the Energy World The Narrator on the Wall
2026-04-15In the most inconspicuous corner of the home, it hangs quietly on the wall. Behind its glass window lies the energy story of a household. It is neither an orna...
-
Mobile
-
Wechat
-
Whatsapp
-
- ABOUT YTL
- About YTL
- Factory
- Honor
- Development
-
- YTL culture
- Culture
- Values
- Advantage
- Three Phase kWh Meter
-
- products
- Single Phase Din Rail Meter
- Three Phase Smart APS Electric Energy Meters
- Three Phase Multi Function Electronic Energy Meter
- Digital Electric Meters
- Electronic Energy Meter
- Electronic Energy Meters
- Three Phase Keypad split type Energy Meter
- Single Phase IC Card Prepayment Energy Meters
- Three Phase Anti-tamper Suspension Energy Meters
-
- Information Activity
- Exhibition News
- Blog
- Knowledge
- Staff Activity
- Industry news
- Single Phase Smart Watt Hour Meter
COPYRIGHT © 2020 Zhejiang Yongtailong Electronic Co., Ltd. ALL RIGHTS RESERVED . 
China DEM3B302 Three Phase High Refresh MID Din Rail Meter Company